Learn Hardcore Korean: toseuteo-e ppangeul neohgo guwoyo. - I put bread in the toaster and toast it.

에 marks the target location or goal of an action (“into” or “in”). Here, 토스터에 tells us you’re putting something into the toaster. In contrast, 에서 marks the place where an action occurs (“at” or “in” as the action’s venue). You could say 토스터에서 빵을 구워요 to mean “You toast bread at/in the toaster,” but when you want to express “put (the bread) into the toaster,” you use 에.

What role does the suffix -고 play in 넣고?

-고 is a connective ending that links verbs in sequence or lists. In 넣고 구워요, it shows the order of actions: “first put in, and then toast.”

Why is 빵 followed by 을 (instead of 가 or 는)?

을 is the direct-object marker used when the noun ends in a consonant (빵 ends in ㅇ, a consonant). It tells us that 빵 is what you’re putting in and toasting. If the noun ended in a vowel, you’d use 를.

Why is 굽다 conjugated as 구워요 instead of 굽어요 or 굽아요?

굽다 is a ㅂ-irregular verb. When a verb stem ending in ㅂ meets a vowel suffix (like -아요/-어요), the ㅂ drops and the preceding vowel changes to 우. Then you attach -어요, giving 구워요.

What tense and speech level does 넣고 구워요 use?

It’s the present tense (general/habitual) in the polite informal style (also called 해요체). This can describe habitual recipes or instructions, like you’d see in a cooking manual.

Can I omit 넣고 and just say 토스터에 빵을 구워요?

Yes—토스터에 빵을 구워요 means “I toast bread in the toaster.” Dropping 넣고 is fine if putting bread in the toaster is understood. Including 넣고 simply spells out the step-by-step process: “put it in, then toast it.”

Could I swap the order to 빵을 토스터에 넣고 구워요? Would the meaning change?

Absolutely. 빵을 토스터에 넣고 구워요 follows the more neutral order (object → location → verbs). The meaning stays the same; only the emphasis or flow shifts slightly. Korean word order is flexible, so fronting 토스터에 or 빵을 is up to you.